Machine for manufacturing roofing tile



May 929.

I; GREENBERG MACHINE FOR MANUFACTURING ROOFING TILE Filed N0`v. 29, 19262 sheets-'sheet l May 7, 192.9. I l. GREENBEG Y' 1,711,849

MACHINE FOR MANUFACTURING ROOFING TILE Filed Nov. 29, 192e 2sheets-sheet 2 v l Izzvzzov. Israel greenbe invention may appearPatented May 7, 1929.

ISRAEL GREENBERG, or `Los ANGELES, CALIFORNIA.

JVIACHINE FOR MANUFACTURING ROOFING TILE.

e Application filed yNavman-` ze, 1926i. seriai No. 151,513.

c This invention relates to a machine .for manufacturing roofing tile orother similar articles that are adapted to be formed in molds; and anobject of the invention is to' provide a machineA that is easy tooperate and effective in operating To that end I provide a machinehaving y side receptacles or hoppers at the sides thereof that areaccessible tov an operator sothat both the mold plates and also thematerial arel easily within'reach; and also the machine is soyconstructed and arranged that it can be operated to produce tile and thelike of a superior quality.

Another object is to provide a machinefor forming tile and the like withameans con-k nected thereto for evenly distributing coloring matter overa face of each tile so that when glazed and finished allthe tile will besubstantially alike yas to color. That is the even and uniformdistribution of color on the tile ermits them to be uniform in color andnot lotched and inharmonius in appearance.Y

Another object of the invention is to pro-y vide a simple means forlifting the i mold plates out 'of the molds when the tiles are formed.This means includes a foot lever for eachmold which can be'actuated byan operators foot so that both his hands are free to receive the tilecharged mold plates when they are lifted from the mold.

Another object of the invention is to provide a machine for forming tilethat is easyv to construct and assemble and which is strong and durablein use.

A feature of the invention ,is shown in thel novel means employed forforming and polishing the top surface or face of the tile and trimmingthe edges thereof.

Another feature of the invention is shown inthe means employed forcleaningfthe tops ofthe `molds and returning the eX'cess material to thehopper to be used again so that waste of material is avoided.

Other objects, advantages and features of from the accompanyingdrawings, the subjoined detailed de scription and thek appended claims.

The4 accompanying drawings illustrate' the invention, it beingunderstood that many of the parts Ain nearly all the figures are shownsemi-diagrammatically.

Figure 1 is a front view of a machine that is constructed in accordancewith this invention; showing by dotted lines an altered po- .'Fig. 2

sition of the Vedge cutter and` groove forming 4 parts.

of the machine. l Fig. 3 is a plan View of the machine showis a view froin the righthand side i ing a tile formed in `one'of the molds and theother mold empty to show the adjustable support for the mold plate, andmeans for elevating it. e

Fig. 4 is an enlarged plan view of the col or spreader showing thelrevolving hopper' p partly in section.

5 is a side view of the color spreader. Fig. 6 is a perspective view ofone form of tille that is adapted to be formed by the mac une.

Fig. t

i is a fragmental cross section through the machine showing in detailthe `general formation of the molds and tile,

a tamper used to forma flange at the end Y of each tile.

Fig. 10 is a combined edge and side view of `a trowel for shaping andglazing the flange formed on the end of each tile.

Fig. 11 is a combined edge and side View of a tamper usedA to'tamp downthe material into the molds.

The main frame of the machine includes the legs 15, cross plates 16, 17,braces 18 and T irons 19; and on opposite sides vof this frame andsecured thereto is an oil tank 20 for holding the tile molds and ahopper 21 for holding the tile forming material that are supported andbraced by bars 22.

Two 'rectangular molds 23 and' 24 are supported on the top lof the frameand the tops and bottoms' of these molds are open.`

Cross 'plates 25 are secured to the bottoms of these molds. and thesevplates carry the adjustable screws 26, four in number for each. mold,that are adapted to support the mold plates 27 inthe bottoms of themolds in level or horizontal position.

The plates 27 are tted snugly to the inner walls of ythe mold so thatwhen filled with tile they can be moved vupward out'of the mold into aposition in which they 'can be 30. Theaspiders-.LBV are adapted toevenly engage the undersides of the mold plates 27 and hold themsubstantially in level'or horizont-al ositionwhile,beine: e'ectedfronfithe molds.

The bars 29 are actuated by--footY treadle levers 31 that are pivotallyconnectedV to bearings 32 on a. front'cross bar 16. These levers areextended between the bars 29 and are arranged to extend under and engagerollers 33 pivotally mounted between the l 'to one anotherY and areVarranged so that at,

opposite sides of each tile there is an overlap 36 lthat. is adapted tobe fitted to and resten an, under extension 37 of another tile when ,thetiles are in use.

The surfacing bar 34 is provided with two pairs of rollers 38 adjacentits ends that are adapted to ride on the top edges of the T irons 19when the bar is1in `use to form and glaze the 4upper surface of*v thetile,y and 'thesey rollrs arebest shown in Figs. 7 and 8. The bearings39 for the rollcrsare extended so that they engage the sides ofthevertical llanges of theT irons 19 to guide thev bar 34 when it is forcedbackward and forwardover the faceof1the tile to shape and glaze it.y

Spring scrapers 40 are ,secured tothe bar 34 by screws 41 andthe purposeof these Scrapers is to engage the vtopside edges of themolds 23, 24andkeep themclean ,when thefmachineis. in use.y

A ch,u te42 is arranged under the. moldsI 23, 24 to carry the. excessmaterial baclrto the hopper 21.

The foregoing described parts of themachineare adapted to form ,thebodiesof the tile; thatisthe mold plates 27 can be placed inandsupported inv the molds 23 yand 24 which Iare then filled by handfromthe hopper 21. 1 After the molds are filled atamper 43, showuin Fig. 11 is usedto tamp the, material Iuntil it isy evenly settled. Thenthe bar 34 is placed ,on the T irons 19 adjacent.

their e forward A ends and l operated forward andibaclrward tol form thetopl surface of the tile and-remove, any excess materialtherefro1n,.which, as' previously stated, is returned by the, chute 42.tov the hopper.

Then.the'topfsurface of the tile is covercdby va coloring materialandthe means forapply-ing the color comprises a revolvingrk cylindricalsieve 44 that is supported in a movable frame 45,;thatx' isy adaptedvto; be movedinto vand out of vposition over the mold boxes 23 and 24.

The. frame.,45;,isfprovided with a front shaft 46 that is rotated by acrank 47. A pair offspools 48::ismounted on this shaft in alignment withsimilar spools 49 mounted on a'loose shaft50that is normally forcedVAaway from the shaft 46 by a pair of springs The 'sieve V44 has closedend'swith spindles 52 that carry spoolsithatare alignedwith thek spoolson the shafts 46" and 50.` The spools are connected by a pair of'straps`54 that extend over the pairs of pulleys 48 .and 49 and wind oncearound the intermediate pair of pulleys 53' so thatewhentheshaftl 4G isrotatedaway fromthe shaft"50,'the sievey willbe, rollejdtoward theshaft46 and when rota-ted in the opposite directionl the sieve will'alsoberolled in theopposite direcf tion; and as the sieve is rotatedit-willfcau'se f the powdered Ycoloring matter therein to sift evenlyout of the sieve; and onto'thfe topv surface ofthe tile,

Normally thefsieve isarranged to rest over a hopper thatcatches any ofthe material] falling outof the sieve when itis not being.,

operatcdto color thetile. Itis filledwith' color through al-trap door75';

The frame 45is pivotally connectedby a` toggle arm 5G- to a Apost57`securedr to one Y corner of thev main frameA ofthe machine, and thepivoted toggle connect1o`n permits the movable. frainefandgsieve tot bemoved off?l to Ythe side l,of theA machine or arranged dij-A rectly overthe molds ,23 and124 soA that in use no coloring matterffallsoffof 'thetile to be wasted.,

y When thesieve is arranged over theiffilledmolds itl canfbe rotatedfbythecrank4to move backward;and;foiward over the tile until they aresuliiciently and 'evenlycovered with the coloring` matter; and thenit'can be, movedofl to the; side. of the machineasudescribed,Preferably' cylindrical lagitjators; 58 are; arranged inside, theAsieve' to .aid `in ,thlev ies discharge of coloring mattertherefromcwhen l the. appliance 'isin use,e l v Afterthe coloringsmatterisjplaced O11 the,v tile,l it is polished bymeans ofvthef-fhandbar 34.which is placed .onthe e T'fironsf119-y 'and f operated aspreviouslyfdescribed gthat', is it` is :moved backward andforwardi,until the topy surface of the tilefis glazed. ,y

A means is provided forforminganfend flange to the, tile.v Threey.parallel[bars59 60 and 1lhave thei-r .rear.ends`.p ivotally c oninectedl to av bearingplateV 62, and-,they-.are arranged so that theytrim thev` side-edgesof f the tileformed inthe moldsg23and ,24 when inuse and raised ;from;.the molds..Y Thefoiz- Ward ,ends of gthese barsare connected ,to ,a die plate 63 that has `recesses .64that are adaptedto register with the forward ends 130 of the tile when the end flangesare being formed. Pivotally connected to the bars 59,

61 are short bars 65, 66 that have a straight terial to form end flanges68 to the tile. A

hand operated tamper 69 shown in side and end elevation in Fig. 9V isused to tamp the material into the vrecesses 64. 'After theserecessesvare filled and tamped a finishing tro'wel 76 shown in side andend elevation' in Fig. l0 is used to glaze the upper surface of theflange 68.

Vhen not in use the plate 63 and straight edge 67 and associated barscanbe turned back to the dot-ted position shown in Figs. l and 2, wherethey incline against a support 71.

In use a large number of mold plates 27 are stored in the open top oilfilled tank 2O accessible to an operator. A plate is placed in each ofthe molds which are then filled with plastic material and finished asdescribed. Then the tile filled plates are ejected from the machine bythe foot treadles and removed from the' spiders to a drying rack. rIhenother oiled plates are placed in the molds and the tilevforining processcontinued.

The detailed construction and operation of the revolving sieve andassociated parts will be covered in a separate application for a UnitedStates Letters Patent.

Vhat I claim as my invention isi l. In a tile machine the combination ofa frame, a pair of mold boxes supported by said frame, tile molds forclosing the bottom of said mold boxes and shaping the bottom surface ofthe tile formed on said molds; an oil tank offset from said frame fol`holding said tileimolds, a hopper offset from said frame for-holdingtile forming material, and a hand bar-adapted to shape land glazetheupper surface of the tile, said bar having guides, spring scrapers androllers thereon for the purpose specified.

2. In a tile machine the kcombination of a main frame, a mold boxsupported by said frame, means for forming a tile in said mold box,anotherfframe, a pivotal connection between said frame; a rotarycylindrical sieve supported by said other frame and arranged: to bemoved toward or from said mold box,

and means for rotating and reciprocating said sieve when arranged oversaid mold box for the purpose specified.

3. In a tile machine, the combination of a main frame, a moldboxsupported by said frame, means for forming a tile in said moldbox,'another frame pivotally connected to said main frame, a rotarycylindrical sieve supported by said other frame, means for reciprocatingsaid sieve backwards and forward when arranged over the mold box; andv afalse hopper supported by said other frame over which said sieve isnormally arranged when not in use.

The elements set forth in claim 8, and cylindrical agitators withinsaidy sieve that coact therewith when said sieve is in use; and a centerdoor through which coloring matter is supplied to said sieve.r Y

5. In a tile machine, the combination of a frame; a mold boX supportedby said frame,

means connectedV with said box for forming the body and lower surface ofa tile, a hand bar shaping and glazing the upper surface of a tile whilein said box, guides adjacent the ends of said bar, pairs of rollersarranged between said guides, and spring` scrapers secured tosaid barfor the purpose specified.

In witness whereof, I have hereunto affixed my signature.

ISRAEL GREENBERG.

